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TITLE:
PHP-Nuke "phpbb_root_path" Arbitrary File Inclusion

SECUNIA ADVISORY ID:
SA15244

VERIFY ADVISORY:
http://secunia.com/advisories/15244/

CRITICAL:
Highly critical

IMPACT:
System access

WHERE:
>From remote

SOFTWARE:
PHP-Nuke 7.x
http://secunia.com/product/2385/

DESCRIPTION:
Silentium has reported a vulnerability in PHP-Nuke, which can be
exploited to compromise a vulnerable system.

Input passed to the "phpbb_root_path" parameter in "admin_styles.php"
is not properly verified before being used to include files. This can
be exploited to include arbitrary files from external and local
resources.

It is also possible to disclose the installation path by supplying
invalid input to the "phpEx" parameter in various scripts.

This vulnerability has been reported in version 7.5. Other versions
may also be affected.

SOLUTION:
Restrict access to administrative scripts using htaccess or similar.

Edit the source code to ensure that input is properly sanitised.

PROVIDED AND/OR DISCOVERED BY:
Silentium, Anacron Group

ORIGINAL ADVISORY:
http://www.autistici.org/anacron-group-italy/file/txt/sile002adv.txt

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